"See http://docs.google.com/Doc?id=dgznb8zt_0fvx7vdgh for detailed instructions."

"A small locking pin should have been supplied with the changing mechanism. This pin prevents rotation of the two parts relative to one another. There is also a lock ring which secures the changing mechanism to the hub."

"The changing mechanism comprises two main parts. The cassette joint pulley is the larger part. It has the cable attached. Rotation of this part in discrete steps engages the seven gears in ascending or descending order. Minimum cable tension accompanies the lowest (easiest) gear."

"Selection of the desired ratio is effected by the changing mechanism fitted to the hub. This mechanism is connected by a cable to an operating device which would typically be a thumb-shifter or a twist-grip on the handlebars."

"How the mechanism works As with all hub gears, the hub contains a system of cogs which allows different ratios of pedal revolutions to wheel revolutions to be selected. The same result is provided more transparently with a derailleur gear system by shifting the chain between different sized chainrings (front) and sprockets (rear)."